Film star North American Aviation P-51D Mustang 'Ferocious Frankie'. The P-51 long-range, single-seat aircraft was first made in the autumn of 1940. It became the most successful Allied fighter of WWII once paired with a British Rolls-Royce Merlin 60 series engine. This D version, 413704 / B7-H, is based at Duxford.